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5 inch length Square Head Bolts (ASME B18. 2.1)

Square Head Bolts were once the most common form of bolt, until they were replaced by hex head bolts. They are covered under ANSI Standard B18.2.1 and are now most commonly used for aesthetic purposes to provide a rustic look .

26 results, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BIG BOLTILSquare Head BoltGrade 8Zinc/Yellow3/4-10 x 5bolt & c/s square boltfulthr b18.2.1500
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BIG BOLTILSquare Head BoltGrade 8Plain7/16-14 x 5bolt & c/s square boltsquare b18.2.12500
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BIG BOLTILSquare Head BoltGrade 5Plain1/4-20 x 5bolt & c/s square boltsquare b18.2.16000
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-12 x 5bolt & c/s square boltb18.2.1430
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BIG BOLTILSquare Head BoltGrade 5Plain5/8-11 x 5bolt & c/s square boltsquare b18.2.12100
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BIG BOLTILSquare Head BoltGrade 8Plain1/2-13 x 5bolt & c/s square boltsquare b18.2.1750
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BIG BOLTILSquare Head Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 5bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1400
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BIG BOLTILSquare Head Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 5bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1500
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BIG BOLTILSquare Head Bolt316, 317, A4 StainlessPlain317 5/8-11 x 5bolt & c/s square bolt316 317 a4 stainless5/8-11x5square b18.2.1 316300
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BIG BOLTILSquare Head BoltGrade 5Plain5/16-18 x 5bolt & c/s square boltsquare b18.2.15000
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/4-12 x 5bolt & c/s square bolt 1/4b18.2.1495
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BIG BOLTILSquare Head BoltGrade 5Plain1/2-13 x 5bolt & c/s square boltsquare b18.2.1643
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BIG BOLTILSquare Head BoltGrade 8Plain7/16-20 x 5bolt & c/s square boltsquare b18.2.11500
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ASMCILSquare Head BoltGrade APlain1/2-13 x 5(pt) coarse a307 gra square hd m/b low carb b18.2.110
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ASMCILSquare Head BoltGrade AZinc/Clear3/4-10 x 5a307 gra square hd m/b low carb zp b18.2.15
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B & K FASTPASquare Head BoltGrade 8Zinc/Yellow7/16-20 x 57/16-20 x 5 square bolts gr 8 z yellow b18.2.124
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B & K FASTPASquare Head BoltSteelPlain7/8-9 x 57/8-9 x 5 square bolts plain b18.2.158
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B & K FASTPASquare Head BoltGrade 5Plain1-8 x 51-8 x 5 square bolt gr 5 plain b18.2.112
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B & K FASTPASquare Head BoltSteelPlain1-8 x 51-8 x 5 square bolts plain b18.2.1295
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B & K FASTPASquare Head BoltGrade 5Plain5/8-11 x 55/8-11 x 5 square bolts gr 5 plain b18.2.110
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B & K FASTPASquare Head BoltSteelPlain5/8-11 x 55/8-11 x 5 square bolts plain b18.2.1119
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QFCTXSquare Head BoltGrade 5Zinc/Clear3/4-10 x 53/4-10x5 sq head bolt gr5 zinc b18.2.14
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 53/8-16x5 (pt) bolts square head bolts a307 grade a square head bolt plain (inch) b18.2.1150
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THRDFASTALSquare Head BoltSteelGalvanized1-8 x 5square hd bolt hdg b18.2.158
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KBSTNSquare Head BoltGrade 8Plain1-8 x 51-8 x 5 square mach bolt gr-8 b18.2.152
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THRDFASTFLSquare Head BoltGrade 5Plain7/8-9 x 5gr5 square hd bolt b18.2.110
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